Getting an Error while Printing the Sales Invoice

[jitendra]

Hello India Compliance Team,

We have done the IRN Generation in the Sales Invoice, but the same is showing in the EInvoice Summary Report,but the same in the Invoice Data: Json is not showing anything. It is showing blank
and While Printing the Sales Invoice it is showing the below Error.

Can you help on this

[NCP]

I think, it’s a custom print format so please check it in the code and resolved it.